Avoid these issues when routing bifacial module wires in solar tracker torque tubes

Bifacial PVEL-001

Bifacial modules continue to have prominent market share in the utility solar segment. These modules continue to have a significant impact on the industry because they completely change wire management and how the wires are routed.

OMCO Solar

Tracker Month sponsor

Power Your Next Project with the OMCO Origin Bifacial Tracker

Bifacial modules capture more power, resulting in increased solar energy yield. OMCOSolar’s Origin Bifacial Tracker is optimized for bifacial modules for up to 20% more back side production. Learn more here

To prevent shading and maximize output, developers are putting a focus on routing the wires where that shading is minimized, which almost always ends up on the torque tube.

While the torque tube is a convenient place to route the wires, it also provides a number of challenges. There are limited attachment points to where you can mount wire management device, leading to limited options like a long cable tie.

Often with a cable tie, the wires are then directly routed on the torque tube. While this is a relatively safe place to keep wires away from harm, you still have many pinch points that absolutely have to be avoided like bearings, brackets, and motors. PV cable as a whole do not hold bend radiuses easily, thus needing more wire management components around these areas.

Applications along the torque tube that can allow wires to free float and are designed to attach to either a bracket or the torque tube itself provides a better long-term solution by allowing for better airflow, less direct contact with metal, and clearance away from a variety of these pinch points.

-Nick Korth is Market Development Manager at HellermannTyton.

Have you checked out our YouTube page?

We have a ton video interviews and additional content on our YouTube page. Recently we debuted Power Forward! -- a collaboration with BayWa r.e. to discuss higher level industry topics as well as best practices / trends for running a solar business today.

Our longer running side project is The Pitch -- in which we have awkward discussions with solar manufacturers and suppliers about their new technology and ideas so that you don't have to. We've discusses everything from residential rail-less deck attaching and home solar financing to large-scale energy storage value stacking and utility-driven new home solar + storage microgrids.

We also post our Project of the Year announcements there! Interviews with this year's winners will be up starting the week of Nov. 8. Head there and subscribe today to stay on top of all this extra stuff.


Comments are closed here.